AGENCY LIST

SEO Agencies in San Diego

59 SEO agencies are listed in San Diego, California. 3 have been assessed on the Agency List Score as of September 2026; the highest-ranked is Formula Marketing at 94.3.

Ranked · 3 assessed

Ordered by Agency List Score
#1 of 3 assessed
Formula Marketing
94
Verified

Performance marketing and AI-driven strategies for measurable brand growth.

Content MarketingLead GenerationSearch Engine Optimization
View profile
#2 of 3 assessed
Fileroom
73
Verified

Empowers B2B growth with HubSpot and AI-driven marketing.

Content MarketingMarketing AutomationSearch Engine Optimization
View profile
#3 of 3 assessed
Code n Logos
72
Verified

Websites, apps, and branding built for financial, insurance, nonprofit, and government clients

Search Engine OptimizationWebsite Optimization
View profile

Also in San Diego · 56 not yet assessed

Listed agencies queued for assessment. Alphabetical.
220 Marketing GroupView profile →2POINTView profile →3 Stage MarketingView profile →Aestheticbrand MarketingView profile →AGW GroupView profile →Ameba MarketingView profile →ArtgroView profile →Attn AgencyView profile →AutofusionView profile →Branding Marketing AgencyView profile →Brandlift Digital MarketingView profile →Captura GroupView profile →Creative FusionView profile →Doctor MultimediaView profile →Dynamik Internet MarketingView profile →Force0sixView profile →GrizzlyView profile →Hollis Brand CultureView profile →Holly Berkley ConsultingView profile →iCatch MarketingView profile →Ignite VisibilityView profile →Inventiva DesignView profile →ION Ceramic Pro IONView profile →KinitrosView profile →

About this ranking

What this page ranks

This page ranks the 3 SEO agencies in San Diego, California that have been assessed on the Agency List Score, out of 59 listed.

The score measures how well an agency documents its own work in public — named clients, quantified outcomes, and whether those outcomes are attributed to the agency rather than described as the client's own results. It does not measure client satisfaction, price, or availability.

Cohorts and awards

Agencies are compared within a cohort — here, SEO in San Diego, California. A cohort must be large enough to express the band being awarded: at least 8 assessed agencies for a top 25% award, 20 for top 10%, 40 for top 5%, and 300 for top 1%. This one holds 3, so no award can be issued here.

The 56 SEO agencies not yet assessed are listed on this page but not ranked.

Read the full methodology

Paid placement

Partner agencies can buy a labelled placement block above the ranking on this page. It is always marked as paid and is never mixed into the ranked list.

Placement is paid; it does not affect the ranking, cohort membership, or any agency's score. Ranking position, cohort membership and the score itself are not for sale.

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Questions

How many SEO agencies are in San Diego, California?
59 are listed on Agency List in San Diego, California. 3 of them have been assessed on the Agency List Score as of September 2026.
Which SEO agency in San Diego, California is ranked highest?
Formula Marketing, with an Agency List Score of 94.3, ranks #1 of 3 assessed agencies in SEO in San Diego, California.
Why are 56 SEO agencies listed here but not ranked?
56 of the 59 listed have not yet been assessed on the Agency List Score. They each have a profile and are listed below the ranking, alphabetically, rather than being hidden or mixed into it.
How is the ranking determined?
By Agency List Score, within the SEO in San Diego, California cohort of 3 assessed agencies. The score is computed from evidence published on each agency's own website: named clients, quantified outcomes, and whether the outcome is attributed to the agency. Paid placement does not affect it.